[delphizip] Re: SFX - Autorun
- From: "Peter Gore" <peter@xxxxxxxxxxxxxxxxxxxxxxxx>
- To: <delphizip@xxxxxxxxxxxxx>
- Date: Fri, 17 Apr 2009 04:51:41 +0100
Thanks Russell, that clarifies it for me. Present behaviour is fine by me.
Regards.
Peter Gore
-----Original Message-----
From: delphizip-bounce@xxxxxxxxxxxxx [mailto:delphizip-bounce@xxxxxxxxxxxxx]
On Behalf Of RPeters
Sent: 16 April 2009 23:56
To: delphizip@xxxxxxxxxxxxx
Subject: [delphizip] Re: SFX - Autorun
RPeters wrote:
> Peter Gore wrote:
>
>> Hi,
>>
>> The online help says of SFXAutoRun
>>
>>
>>
>> If True, extraction of the SFX contents will be performed automatically,
>> no user actions are required. NOTE: This works only if the SFX's
>> filename starts with an exclamation mark ( ! ) -for security reasons-
>> For example: !AUTORUN.EXE WARNING: Use this only in rare cases! We
>> advise you NOT to use this because files will be extracted onto the
>> user's disk without his knowledge.
>>
>>
>>
>> For me, setting autorun to true seems to work irrespective of whether
>> the filename starts with an ! or not. (which is what I actually want).
>>
>>
>>
>> Can I rely on this changed behaviour?
>>
>>
>>
>> Regards
>>
>>
>>
>> Peter Gore
>>
>> Intel Systems Manager
>>
>> (ddi) 01277 376433
>>
>> (swb) 01277 372916
>>
>> (mob) 07891 911989
>>
>>
>>
>>
>>
>>
>>
>>
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> I will have to have a look to see how it changed (accident or design) to
> know that.
> But remember how dangerous it is and that quite possibly it could have
> problems under Vista or beyond.
> Russell Peters
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Looking at SFXInteface.pas I can see another option involved with this -
soCheckAutoRunFileName, // can only autorun if !... or setup.exe
and in the SFX code
// check autorun flag
if (soAutoRun in Options) and (soCheckAutoRunFileName in Options) then
begin
if not (CompareText(ExtractFileName(VStr_ExeName), 'Setup.exe') or
(ExtractFileName(VStr_ExeName)[1] = '!'))
then
Exclude(Options, soAutoRun);
end;
So I think it is safe to assume that this will continue to work that way
unless someone decides to change it in a future version.
I have not changed it in the next version although personally I think it
should only be allowed if a command line switch was used -
unfortunately that requires extra code which we try to avoid.
Russell Peters
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